Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 9,321	$ 8,811
Accounts receivable, net	106,455	120,612
Prepaid expenses	3,978	3,297
Other current assets	2,457	7,032
Total current assets	122,211	139,752
Property and equipment, net	9,537	7,891
Goodwill	269,570	269,383
Intangible assets, net	45,240	53,408
Other non-current assets	3,939	3,930
Total assets	450,497	474,364
Current liabilities:
Accounts payable	13,485	18,793
Other current liabilities	22,505	37,783
Total current liabilities	35,990	56,576
Long-term debt	28,000	56,000
Other non-current liabilities	14,520	12,978
Total liabilities	78,510	125,554
Stockholders' equity:
Common stock (par value $.001 per share; 50,000,000 shares authorized and 45,562,013 shares issued and 34,615,466 shares outstanding as of September 30, 2016; 45,124,948 shares issued and 34,394,412 shares outstanding as of December 31, 2015)	45	45
Additional paid-in capital	375,473	364,786
Accumulated other comprehensive loss	(2,122)	(1,875)
Treasury stock, at cost (10,946,547 shares as of September 30, 2016; 10,730,536 shares as of December 31, 2015)	(107,226)	(103,197)
Retained earnings	105,817	89,051
Total stockholders' equity	371,987	348,810
Total liabilities and stockholders' equity	$ 450,497	$ 474,364